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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
40:32:26
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2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Problems
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Status
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Custom test
Problems
#
Name
1490A
Dense Array
greedy
,
math
800
x30414
1520C
Not Adjacent Matrix
constructive algorithms
1000
x30341
1742C
Stripes
implementation
900
x30332
1611A
Make Even
constructive algorithms
,
math
800
x30315
1360D
Buying Shovels
math
,
number theory
1300
x30281
567A
Lineland Mail
greedy
,
implementation
900
x30186
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30171
1303A
Erasing Zeroes
implementation
,
strings
800
x30072
1506A
Strange Table
math
800
x29964
1553A
Digits Sum
math
,
number theory
800
x29907
688B
Lovely Palindromes
constructive algorithms
,
math
1000
x29838
1619B
Squares and Cubes
implementation
,
math
800
x29817
1547A
Shortest Path with Obstacle
implementation
,
math
800
x29711
1714C
Minimum Varied Number
greedy
800
x29690
1811A
Insert Digit
greedy
,
math
,
strings
800
x29673
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x29519
1567A
Domino Disaster
implementation
,
strings
800
x29494
1472C
Long Jumps
dp
,
graphs
1100
x29491
1519B
The Cake Is a Lie
dp
,
math
800
x29487
1800A
Is It a Cat?
implementation
,
strings
800
x29476
709A
Juicer
implementation
900
x29475
1741A
Compare T-Shirt Sizes
implementation
,
implementation
,
strings
800
x29381
1878B
Aleksa and Stack
constructive algorithms
,
math
800
x29360
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x29351
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x29337
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x29330
1622A
Construct a Rectangle
geometry
,
math
800
x29291
82A
Double Cola
implementation
,
math
1100
x29272
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29261
20C
Dijkstra?
graphs
,
shortest paths
1900
x29199
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x29195
1328C
Ternary XOR
greedy
,
implementation
1200
x29174
1141A
Game 23
implementation
,
math
1000
x29130
1931B
Make Equal
greedy
800
x29086
1296B
Food Buying
math
900
x29082
1722C
Word Game
data structures
,
implementation
800
x29000
1914A
Problemsolving Log
implementation
,
strings
800
x28993
1095A
Repeating Cipher
implementation
800
x28968
1729B
Decode String
greedy
,
strings
800
x28967
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x28900
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x28847
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x28806
1807C
Find and Replace
greedy
,
implementation
,
strings
800
x28804
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x28796
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x28733
1077A
Frog Jumping
math
800
x28720
1632A
ABC
implementation
800
x28718
1182A
Filling Shapes
dp
,
math
1000
x28711
1366A
Shovels and Swords
binary search
,
greedy
,
math
1100
x28710
711A
Bus to Udayland
brute force
,
implementation
800
x28685
1220A
Cards
implementation
,
sortings
,
strings
800
x28638
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x28591
1359A
Berland Poker
brute force
,
greedy
,
math
1000
x28569
1631A
Min Max Swap
greedy
800
x28490
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x28485
349A
Cinema Line
greedy
,
implementation
1100
x28453
1554A
Cherry
greedy
800
x28435
1759A
Yes-Yes?
implementation
,
strings
800
x28432
1919B
Plus-Minus Split
greedy
800
x28424
1926B
Vlad and Shapes
geometry
,
implementation
800
x28414
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x28414
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x28404
1629A
Download More RAM
brute force
,
greedy
,
sortings
800
x28403
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x28341
1859A
United We Stand
constructive algorithms
,
math
,
number theory
800
x28339
479C
Exams
greedy
,
sortings
1400
x28315
1851A
Escalator Conversations
brute force
,
constructive algorithms
,
math
800
x28289
1837A
Grasshopper on a Line
constructive algorithms
,
math
800
x28228
1526B
I Hate 1111
dp
,
math
,
number theory
1400
x28198
1626A
Equidistant Letters
constructive algorithms
,
sortings
800
x28183
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x28177
34A
Reconnaissance 2
implementation
800
x28149
275A
Lights Out
implementation
900
x28147
1714A
Everyone Loves to Sleep
implementation
,
math
900
x28139
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x28135
1341A
Nastya and Rice
math
900
x28134
1519A
Red and Blue Beans
math
800
x28132
139A
Petr and Book
implementation
1000
x28114
1256A
Payment Without Change
math
1000
x28089
698A
Vacations
dp
1400
x28074
1409B
Minimum Product
brute force
,
greedy
,
math
1100
x28064
1397A
Juggling Letters
greedy
,
strings
800
x27998
118B
Present from Lena
constructive algorithms
,
implementation
1000
x27998
1772B
Matrix Rotation
brute force
,
implementation
800
x27956
1914B
Preparing for the Contest
constructive algorithms
,
math
800
x27952
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x27950
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x27899
26A
Almost Prime
number theory
900
x27879
445A
DZY Loves Chessboard
dfs and similar
,
implementation
1200
x27875
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x27842
1559A
Mocha and Math
bitmasks
,
constructive algorithms
,
math
900
x27812
1768A
Greatest Convex
greedy
,
math
,
number theory
800
x27739
1862B
Sequence Game
constructive algorithms
800
x27652
1843B
Long Long
greedy
,
math
,
two pointers
800
x27610
599A
Patrick and Shopping
implementation
800
x27602
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x27598
1851B
Parity Sort
greedy
,
sortings
,
two pointers
800
x27555
1698A
XOR Mixup
bitmasks
,
brute force
800
x27539
1807D
Odd Queries
data structures
,
implementation
900
x27514
1550A
Find The Array
greedy
,
math
800
x27511
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